Re: 1998 Sport engine surge, also thump in back
"RZ" <email@example.com> wrote in message
> I have a 1998 Explorer Sport, auto trans;
> 1. when engine is warmed up to running temp, at idle I hear a relay
> then the engine powers down just as if the A/C has come on, then after 2
> seconds the relay clicks again, and the engine is back to running normal,
> then relay clicks, and engine powers down....this cycling contiues for the
> longest time, at idle, sometimes I can leave it at idle for 1/2 and hour,
> and this "surging" cycle keeps happening. All controls in the truck cab
> off, by the way.
Is the heater in the "off" position ???????
also in "def" mode the a/c will come on and when its cycles this fast its
usually is low on freon.
Other then that there is nothing I can think of that pulls so much power
from engine to make idle go down.
It doesnt have air suspension ,does it ??
Never seen a explorer sport with aiir suspension but you never know
> 2. When ever I brake to a full stop, just before coming to a standing
> there is a loud CLUNK (which you can also feel in your back) coming from
> rear. If you come to a more gradual stop, it doesn't seem to happen. Could
> this be a tranny problem, or something else ?
Is it 4x4 ??, some models have problems with drive shaft binding up , pull
drive shaft from tranny and put lithium grease in it